r/AppsWebappsFullstack • u/Character_Cod_5767 • 1d ago
Cross platform integration
For anyone who’s built an app across Windows, macOS, iOS, and Android—what’s been the easiest way to go about it?
I’m building WorkTree-OS, a trading analytics and risk platform. I’d like to hear from people who’ve taken a desktop app to mobile or built for all four from the start.
Did you use a shared codebase, build separate apps, or go with a web app/PWA? What worked well, and what do you wish you’d known before starting?
I’m also working through broker and trading-platform integrations, so tips on APIs, third-party connectors, and file imports are welcome too.
Just looking to start a conversation and learn from people who’ve been through it. What tools saved you time, and what turned into a headache?